u either get fish which can breath under water Birds which can fly or mammals which can do none of the above
A non-mammal. It is a kind of jellyfish.
No flies are mammals.
No they can't
It can be either.
A crocodile isn't a mammal it's a reptile.
It depends on what you mean by non-mammals. If you are counting all matter as a non-mammal, then most non-mammals are not organisms. If you are counting a non-mammal as any life form or any animal that is not a mammal, then all non-mammals are organisms.
A frog
Yes, they are lizards.
Yes, bats are non-placental mammals
No, a bear is a placental mammal. They also birth their cubs while in hibernation.
whale shark
non-mammal